Add `DataOutput.writeBytes(String)` (and overrides)

[Marcono1234]

Hello,
DataOutput.writeBytes(String) and its overrides only writes the low byte of each character, ignoring the high byte.
Should it be added to the list of forbidden signatures (for Java 7)?

[uschindler]

Hi thanks for this issue. This is indeed needed.

I'll add to the signatures. It is not needed to add the overrides because of inheritance from this interface.

[uschindler]

I also added the complement DataInput.readLine() which has exactly the same problem. DataInput.readBytes() does not exist.